Turning-plug.



PATENTED FEB. 25, 1908 '11. H. GRAMER.

TURNING PLUG.

APPLIQATION nun O0T.B.1906.

3 mm u for.

Q, ha 25:2:

. oi the valve stem.

UNITED STATES PATENT OFFICE.

HERBERT H. CRAMFIR, OF DENVER, COLORADO.

TURNING-PLUG.

Specification of Letters Patent.

- Yatented Feb. 25, 1908.

Application filed October 8. 1906- Lie-rial No. 333.63%.

.T 0 all. whom may cent-cm:

Be it. known that 1, HERBERT ll. Cit-unis, of the eit v and wont of Denver and Sta'te of folorudo, have invented certain new and useful improvements in 'lnrning-Plngs; and i do hereby derlnre the. following to he a full, clear, and exact description of the invention, sin-h as nillemihle others skilled in the art to whieh it nppertuins to imib'e and use the same.

'lhisturning plug is primarily designed for use in l'nilltcetiuii with IUtk drills and other uir operated :ipplinnees, and the objects are,

first. t0 ennhle the easing to he held in t1 vise 1 without danger of in uring the tlrreaded e.\'- f tensions; secondly, to insure the retention in place of a soft valve fueiw under all conditions; thirdly, to pnsitiveltv hold the valve disk zi ainst its seat when there is pressure through the easing toward the under side of the valve; and lastly, to enuhle the handle g and valve stem to he plat-ed in dillerent posi tions relatively to the valve disk.

The invention will he hereii izil'ter fully setforth and ptirtieuiarlv pointed out in the claims.

in the. aeeonipnnying drawings. Figure l is a sideelevation. view. tional view. the valve disk.

Fig. is n hottont liltt view of Figs. (3 und 7 are views of inodilied forms of the valve disk. Fig. N is :1 rross set-tionzd view on line 8, Fig. ti. Fig. is it. view ol the valve hiring employed in eminent ion with the [onus of dish shown in Figs. ti and 7. Fig. ll! is a view in perspertive i the valve dish.

Referring to the drawings, 1 designates the easing: L the inlet extension and It the outlet extension. hoth ol whieh tire exteriorlv threaded and are ult snhstzintiullv the same plane. ln som instant-es the extension Il may he the inlet and the extension 1 the outlet. The opposite sides ol' the easing ure lhittened, :is at l, 4. Figs. l and .2, the (hiss set-lion of the easing through the lhittr-ned )ortions living oi'grentt'i' diameter than that 3 of either ol the extensions. tlu-relrv Mini-ling! the t-nsing to he leudilv held Ht vist- \\ithout injuring the threaded portions.

('entrull within the misting is :i who sent 5 \vhieh is formed \Hlll tno ports- 4 um] seated thereon is the valve dish 7 als termed with ports designed to eoineide with the ports (3. These ports of the vulv disk '2! re Fig. is u lmilnlll plan i F1. 3 is :1 vertn-zil lon itudnnd sew r I Q Fig. 5 is a lower end vii-w f'titted with short tubes 3, the lower ends of which project slightly beyond the bottom face of the valve disk, and their extreme lower edges arr lhired so as to retain in position 21 facing 9. preferably of leather. This fur-in is e? sueli thickness that the tubes 8 will not extend entirely therethrou h. By ex anilin the ends of the tubes the int-in is held in place and prevented from dropping oil' when the valve is taken apart, and is also prevented from sagging when passing over ports 5 of the valve seat, thus ireventing the I edges from engaging or hnelcling when the valve is hein; turned on its seat. On its upper face the valve dish is provided with 0. Ill) ill, b A V l'. designates the valve stem which is suit nhl) pilt'htll and held illiili the easing by 8. honnet 125. The lower portion of this stem hits a: hore to iitt'ttllllll t'litlt the roil-spring 14 whit-h heals downwardly on til) it), serving then-h 1 to hold the valve disk to its sent. This r pl'lllfl is snllieient when the device is used as :i throttle valve or :1 blow-oil cock, hut where there is pressure from the under 5 side of the vulvadisk, it, is desirable to r0- vide additi nal lneu'ns l'or positively huh ing the valve disk to its sent, and for this purpose l employ u phi; [5 limited ventrally within the prin; H and designed to engage the upper edge of rih ltl. ,lllt' upper portion of said phi; hein; threaded and working in a. l tlit'ended opening in stem l2 beyond which i itprojeets to ltttlYt :i'juin nut 16. The operating handle l? may also he retained in iosition lvv this jam nut, hut ordinarily the handle is p imarily set-tired to the valve stem preleruhlv h v rivt-iiug. 'lh rlowerend of the valve stem is formed with two sets of oppo- .-lltl disposed slots 18, lit. to :u'eoilitnodate rih Ht, and thus interlock the stem with the valve dish. The two sets of slots-being zit right-angles to eneh other. the position of the handle and the stem relatively to the valve disk mu v hrreudil) ehanged.

ln soine instant-es it is desirable to form enlarged ports in the valve disk, in \vhieh event if the ports intersei-t the periphery of the disk. as shown in Fig. l), or at their outer edges are pui'nllel with sin-h periphery, as shown in Fig. 7. the valve disk is preferably l nt-med with llured lips 20, us shown in said figures. and in either event, thrvulvo hiring will be retained by the said lips after the manner speeilied in eonneelion with tithes 8.

it will he understood, of t'aJUSSO, that the valve facing need not necessarily be of leather, as it may be of any suitable metal cast or otherwise secured to the under face of the valve disk.

From What. has been said it will be readily obser ed that i have provided a very simple and inexpensive form of turning plug espeeially adapted for use in connection with alpplianees operated by compressed air.

easing may be easily secured in an ordinary vise WiIl'lOHL danger of injuring the threaded T 1e parts are readily removable, suite the valve 3 I i I latter retained in place by said lips, and; l

means for turning said disk.

2. A turning plug eomprisingacasinghavmg a valve seat formed with ports a valve disk also hav ports, tubes fitted in said latter ports and projecting beyond the face of the disk, a facing for said disk retained in place thereon by said tubes, and means for turning said disk:

3. A turning plug comprising a casing ha ving a valve seat, a valve i'itted thereon. a stem formed at its end to en 'age said disk, said stem having a central bore and a threaded opening leading: from such bore, a spring located within said bore and engaging said valve disk, and an adjustable plug having a threaded portion working in said threaded opening, said lug being also designed to engage and he d said disk.

Inlestimony whereof, I have signed this specifies en the presence of two subseribmg Witnesses.

HERBERT ll. CRAMER \Vitnesses:

E. S. llAMlLTOX, E. HEDn-Nsime. 

